# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/727094130:0028
# Permalink to this reading: https://leibnizlegible.com/page/727094130:0028?run=74
# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 16, page id 727094130:0028
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=727094130&page=28
# Source image: https://digitale-sammlungen.gwlb.de/content/727094130/jpgs/default/00000028.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 31 lines, status machine
# Lines: 31 recognised, mean confidence 0.87
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

nma LLC
Omnis conois, vel Spharois, per axem secta reddit eandem coni sect
onem, ex qua est genita: Sectionis autem axis, idem est cum axe
Conoidis, vel Spharoidis.
IcConois, vel Sphaerois quaelibec ABC D, cujus aris AC,
per quem plano sececur, hacqi sectio F. AF C: Dico lectio-
nem F A F C, esse eandem sectionem Conicam, ex qua est ge-
nica Conois vel Sptiaerois A B C D: cujus eriam sectionis co-
nicx dico AC esse axem.: Inrelligatr AB C D sectio conica,
ex cujus rerolutione genira est figura: ecenim ( ipla ABC D re-
volvatur, quoad
incidae in locum
sectionis AFCF,
AUCCOTAFOTICON-
veniee, aue ab
IPCa AF C F dis-
crepabic: lcon-
veniar, eadem est
AF C F, ac ipla
ABC D, _C u
criulqs idem est
aisAC, urincen-
diraus: B discre-
Dec aliqua Parte,
OS COHICX ABC
hicuE equales E s d COuNeM
equaur aliquid esse in figutay quod a
revolurione, non est conlticurum, quod est ablurdum. Non ergo
dilcrepabune, et
AC; quod demon(tranCuM CraT.
rOp.